Re: POSIX shared memory support - Mailing list pgsql-hackers

From James Mansion
Subject Re: POSIX shared memory support
Date
Msg-id 47F13D89.2020309@mansionfamily.plus.com
Whole thread Raw
In response to Re: POSIX shared memory support  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: POSIX shared memory support
List pgsql-hackers
Tom Lane wrote:
> Yeah, I would be far more interested in this patch if it avoided needing
> SysV shmem at all.  The problem is to find an adequate substitute for
> the nattch-based interlock against live children of a dead postmaster.
>
>   
(confused) Why can't you use mmap of /dev/zero and inherit the fd into 
child processes?
(simple enough to do something similar on Win32, even if the mechanism 
isn't identical)



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